Process for preparation of palladium on carbon catalysts used in the purification of crude terephthalic acid
US4421676A · kind A · utility
5Cited by
2References
5Claims
0Family size
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Key dates
| Filing date | Oct 29, 1981 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Oct 29, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/487
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A catalyst and process for purifying crude terephthalic acid wherein the catalyst is prepared by contacting a carbonaceous support with an aqueous solution of sodium tetranitropalladate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.